stable isotopes

New Hubbard Brook hydro and hydropedology papers from the group

April 11, 2019 / Lab news, Research paper / By

Our graduate students and collaborators on Hubbard Brook projects have several new papers now available online. Bourgault, R. R., Ross, D. S., Bailey, S. W., McGuire, K. J., Gannon, J. P., 2017. Redistribution of soil metals and organic carbon via lateral flowpaths at the catchment scale in a glaciated upland setting, Geoderma, 307:238–252, doi: 10.1016/j.geoderma.2017.05.039. …

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New paper linking water age and solute dynamics at Hubbard Brook

April 11, 2019 / Lab news, Research paper, Visitors / By

Paolo Benettin’s paper was just accepted, which was the result of his study abroad visit here in the lab during the fall 2013 and spring 2014.  The manuscript explores water age-dependent transport in estimating weathering-derived solute export.   The model predicts water travel time dynamics from water stable isotope data and represents geochemical dissolution at the catchment-scale as a simple first-order kinetic …

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Two new papers on water travel times in catchments

May 24, 2019 / Commentary, Lab news, Research paper / By

Two new papers are available in Water Resources Research on water travel time estimation in catchments.  Both represent collaborations with colleagues to advance techniques in understanding the transient nature of travel time distributions.  We’re getting closer and closer to answering the question: how old is that water in the stream? Rinaldo, A., Benettin, P., Harman, …

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New paper about how forests lose nitrogen through shallow groundwater flowpaths

November 5, 2014 / Lab news, Research paper / By

In a paper published in the Proceedings of the National Academy of Sciences, McGuire working with a team from the Hubbard Brook Ecosystem Study found clear evidence of nitrogen loss through denitrification in isolated shallow groundwater patches in a small watershed. The findings were somewhat of a surprise because denitrification has been so difficult to …

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Welcome Paolo!

September 24, 2013 / Lab news, Visitors / By

Paolo Benettin, a Ph.D. student from the University of Padova in Italy, arrived last week and will join our lab group for the next 9 months. He will be working on watershed modeling of transport processes and using stable isotope tracer data from our research site at the Hubbard Brook Experimental Forest in New Hampshire. …

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The launch of isotope hydrology through a beer bottle

May 24, 2019 / Popular news, ReBlog, Science / By

Cool blog post from Simple Climate on Willi Dansgaard, the father of isotope paleoclimatology and hydrology.  Check it out: “How a beer bottle helped reveal rapid past climate change” Ok, so the article is mostly about the impact Dansgaard has had on understanding past climate, but those of us that use stable water isotopes in hydrology also …

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American Geophysical Union Fall 2011 presentations by lab members and collaborators

November 30, 2011 / Lab news, Meetings / By

Wednesday:  Characterizing the Hydrologic Impacts of Mountaintop Mining Using Stable Isotopes; Nicolas Zegre and Kevin J. McGuire, H31A-1120. Thursday: A Hydropedological View of Critical Zone Structure and Function at the Hubbard Brook Experimental Forest, New Hampshire, USA; Scott W. Bailey, Kevin J. McGuire, Thomas D. Bullen, and Donald S. Ross, B41H-07. Rare Earth Elements as …

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Installing the liquid sampler on the vario “cube”

August 15, 2011 / Lab news / By

The liquid sampler for the IRMS is being installed.  We worked through the installation of the C and N components over the last 2 weeks and we’ve now moved on to water.  Soon we’ll be running water isotopes! We’re also looking for a catchy name for the lab.  Any thoughts?  We hoping for something better than …

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Stuff you should know…mountain-top mining

May 24, 2019 / Lab news, Popular news / By

Mountain-top mining seems to be in the news everywhere these days.  Josh and Chuck, two of my favorite podcast personalities who host “Stuff You Should Know (SYSK),” had a story on mountain-top mining last week called “What is mountaintop removal mining?”  It was informative, probably best for a lay audience, and included a musical performance – …

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